Compatible for American Plumber WPD-110 Compatible Whole House Sediment Filter Cartridge (4-Pack) by American Water Solutions. Polypropylene design protects valuable appliances and plumbing fixtures The American Plumber Compatible WPD-110 replacement cartridge reduces sediment above 5 microns in size and provides excellent sediment filtration for whole house water filter applications. Any brand names or logos are the registered trademarks of their respective owners. Any use of any brand name or model designation for this product is made solely for purposes of demonstrating compatibility.